190825866911 has 2 divisors, whose sum is σ = 190825866912. Its totient is φ = 190825866910.

The previous prime is 190825866877. The next prime is 190825866923. The reversal of 190825866911 is 119668528091.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190825866911 is a prime.

It is a super-2 number, since 2×190825866911² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190825866971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95412933455 + 95412933456.

It is an arithmetic number, because the mean of its divisors is an integer number (95412933456).

Almost surely, 2^190825866911 is an apocalyptic number.

190825866911 is a deficient number, since it is larger than the sum of its proper divisors (1).

190825866911 is an equidigital number, since it uses as much as digits as its factorization.

190825866911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 56.

The spelling of 190825866911 in words is "one hundred ninety billion, eight hundred twenty-five million, eight hundred sixty-six thousand, nine hundred eleven".